What makes this differential a 'street design'?

The 'street design' refers to the inclusion of two preload springs. These springs help to provide smoother engagement of the limited-slip clutches, making it more comfortable for everyday driving compared to more aggressive, competition-oriented differentials.

Does this unit come with the necessary bolts for installation?

The manufacturer notes that this unit 'needs T/L bolts.' You will need to source the appropriate Trac-Loc bolts separately for installation.

Can this differential be rebuilt if needed?

Yes, this Yukon Trac Loc is designed to be completely rebuildable. This means you can service and replace internal components if they wear out over time, extending the life of the unit.

Yukon Gear & Axle Trac Loc Differential YDGF9-31-SM - Ford 9

Name: Yukon Gear Trac Loc For Ford 9in With 31 Spline Axles. Street Design
Brand: Yukon Gear & Axle
Price: 908.89 USD
Availability: InStock

Yukon Gear Trac Loc For Ford 9in With 31 Spline Axles. Street Design

$908.89

Only 1 left in stock

Yukon Gear Trac Loc for Ford 9in with 31 spline axles. Street Design Limited Slip Unit Diffrl

Key Features

Fits Ford 9in rearends with 31-spline axles.
Features a 4-pinion design for strong operation.
Includes composite clutches for smooth, consistent limited-slip action.
Built with a high-strength nodular case and 4320 chromoly spider gears.
Designed with two preload springs for smooth street engagement.
Fully rebuildable unit, assembled in the USA.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Starting with the 4320 chromoly spider gears, this Yukon Trac Loc differential is built for durability in your Ford 9-inch rearend. This is a limited-slip unit designed for smooth engagement, making it a solid choice for everyday driving and a wide variety of terrains. It features a 4-pinion design for robust operation and composite clutches that offer consistent performance.

This Trac Loc is specifically made for Ford 9-inch rearends with 31-spline axles and fits all gear ratios. It's engineered with a high-strength nodular case and includes two preload springs for a smooth engagement that won't be jarring on the street. The unit is also completely rebuildable, meaning you can service it down the road to keep it performing at its best. It's assembled in the USA after extensive product testing and software design.

This differential is a great option for a range of classic Ford vehicles, including models like the Ford Bronco, F-100, and Mustang. If you're looking to improve traction and performance in your Ford 9-inch rearend, this Yukon Trac Loc is a well-built choice that balances smooth street manners with capable performance.